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Earth Institute Research Projects

IceBridge 2012-2015: Gravity and Magnetics

Lead PI: Dr. James R. Cochran , Dr. Robin E. Bell , Kirsteen J Tinto

Unit Affiliation: Marine Geology & Geophysics, Lamont-Doherty Earth Observatory (LDEO)

December 2012 - February 2016
Inactive
Antarctica
Project Type: Research

DESCRIPTION: Funding will support the IceBridge Campaign collect gravity data, elevation data, and ice thickness within three kilometers of the ice sheet grounding line and along a second line 10km upstream. These data will be used to improve the resolution of the local geoid, constrain the tectonic framework of the underlying bedrock, and to identify sub-ice magnetic features that will affect the gravity interpretation and possible geothermal fluxes.

OUTCOMES: Flew an OIB campaign to Antarctica which collected final Level 2 free-air gravity anomaly data which is now available through the NSIDC IceBridge Data Portal. Level 4 bathymetry data, and Level 3 gravity data are under revision and should be available soon. Three abstracts given and 18 presentations given.

SPONSOR:

National Aeronautics & Space Administration

FUNDED AMOUNT:

$3,583,995

EXTERNAL COLLABORATORS:

United States Geological Survey (USGS)

KEYWORDS

ice sheets ice thickness icesat operation icebridge ocean and climate physics gravity fields gravity data